Delete files that belongs to dev branch.

1. delete files.
2. add mux/router test for dogo.
Some changes.
Add some procs.

1. add index proc for testing render system and compress.
2. add /405 for testing method not allowed and check the response header's
allow field.
3. test default not found handler.
Write a page demo for examples collection.

1. a main page, list all the examples.
2. view source code by clicking relative links.
3. view execution results on the page.
Merge pull request #2 from ggicci/reconstruction

Reconstruction